362 AGRICULTURE 



bined. The following tables show several balanced and 

 economical rations for dairy cows:* 



Ration I. Ration II. 



Corn silage 30 pounds Sugar beets 25 pounds 



Cow-pea hay __ 10 " Alfalfa hay 10 



Corn stover 2 " Corn stover 5 " 



Corn 6 " Corn 5 



Cottonseed-meal 1.5 " Dried brewers' 



grains 5 " 



Ration III. Ration IV. 



Clover hay 18 pounds Corn silage 30 pounds 



Corn 5 " Canadian pea and 



Wheat bran or oat hay 10 



oats 6 " Oats 5 



Cottonseed-meal 1 " Gluten feed 4 



It must be remembered that, no matter what the feeds 

 used to supply the protein, carbohydrate and fat, there must 

 also be a certain amount of roughage in the ration. All 

 browsing or grazing animals require bulky feed, and can not 

 thrive on concentrated material alone. 



TOPICS FOR INVESTIGATION 



1. Are the cattle on your home farm of dairy breed, 

 beef breed, or "general purpose" breed? Talk with your 

 father and learn the lineage of each of your milk cows. 

 Are they "blooded," "grade," or "scrub" stock? Is your 

 herd being "selected" toward any pure breed? 



2. Is the milk produced by your cows weighed and 

 tested for butter-fat? If so, how does the record of the 

 herd compare with the herds referred to in the chap- 

 ter? If no tests are being made, talk with your father about 

 getting the apparatus for the Babcock test. After making 

 the test under the direction of the teacher, bring samples 



*( Purdue Eact. Bui. No. 21.) 



